webapp: archive pre-migration scene dirs + bash scripts, update docs

Moves the seven HTML scene dirs (landing/, loading/, game/, desktop/,
goodbye/, music-box/, music/) and the superseded bash helpers (setup.sh,
loading.sh, playlist.sh, telemetry.sh) into archived/ rather than deleting.
The Laravel webapp/ replaces all of them; archived/README.md spells out
the rollback procedure.

Also:
 - rewrite the relevant sections of CLAUDE.md so it points at webapp/
   blade views, the Artisan commands, and the supervisord lifecycle
   (`supervisorctl restart obs-webapp` after route / controller / .env
   changes; Blade view edits are still safe-while-running via OBS's
   Refresh cache).
 - extend scripts/deploy-rig.sh to install php + composer + supervisor,
   run `composer install`, copy obs-webapp.supervisord.conf into
   /etc/supervisor.d/, start the program, and call `php artisan
   rig:setup` + `rig:telemetry --collect` instead of the old bash.
 - .gitignore catches the generated machine-local files that came along
   when the old scene dirs moved (telemetry.js, loading.json, playlist.js,
   cmd.js, obs-config.js).
 - daemon.blade.php is now passive — listens to mpd:state but does not
   play audio or broadcast its own queue, so it stops fighting with
   bridges/mpd-state.py (the post-browser-daemon-migration source of
   truth for mpd:state).
 - nc.blade.php overrides .terminal { overflow: hidden } from hud.css
   so the `┤ TERMINAL ├` and `┤ NOW PLAYING ├` pane-tabs stick above
   the pane border instead of being clipped.

archived/scripts/setup.sh

@@ -0,0 +1,57 @@
+#!/usr/bin/env bash
+# One-time setup: builds vendor/obs-config.js from your existing OBS WebSocket
+# plugin config so the overlay/daemon pages can connect.
+#
+#   bash scripts/setup.sh
+#
+# Re-run if you change the WebSocket port or password in OBS.
+set -euo pipefail
+
+DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+OBS_DIR="$(cd "$DIR/.." && pwd)"
+SRC="$OBS_DIR/plugin_config/obs-websocket/config.json"
+OUT="$OBS_DIR/vendor/obs-config.js"
+
+if [[ ! -f "$SRC" ]]; then
+  echo "  ✗ $SRC not found." >&2
+  echo "    Open OBS once with the obs-websocket plugin loaded so it generates the config." >&2
+  exit 1
+fi
+
+# Pull port + password out of the JSON
+read -r PORT PASS ENABLED <<<"$(python3 -c "
+import json, sys
+d = json.load(open('$SRC'))
+print(d.get('server_port', 4455), d.get('server_password', ''), str(d.get('server_enabled', False)).lower())
+")"
+
+mkdir -p "$OBS_DIR/vendor"
+cat > "$OUT" <<JS
+// Auto-generated by scripts/setup.sh — gitignored. Reflects the current contents
+// of plugin_config/obs-websocket/config.json. Re-run scripts/setup.sh if it changes.
+window.__OBSWS = {
+  url:      'ws://localhost:$PORT',
+  password: '$PASS',
+};
+JS
+
+echo "  ✓ wrote $OUT"
+echo "    url      = ws://localhost:$PORT"
+if [[ -z "$PASS" ]]; then
+  echo "    password = (none)"
+else
+  echo "    password = (set, ${#PASS} chars)"
+fi
+
+# Check the live socket, not the config file — OBS lags writes to plugin_config
+# until shutdown, so server_enabled in JSON often disagrees with reality.
+echo
+if ss -lnt 2>/dev/null | grep -q ":$PORT "; then
+  echo "  ✓ OBS WebSocket server is listening on :$PORT"
+elif nc -z localhost "$PORT" 2>/dev/null; then
+  echo "  ✓ OBS WebSocket server is listening on :$PORT"
+else
+  echo "  ⚠ Nothing listening on :$PORT yet."
+  echo "    In OBS:  Tools → WebSocket Server Settings → ✅ Enable WebSocket server → OK"
+  echo "    (config.json may already say 'enabled: $ENABLED' — that file lags actual state)"
+fi